What happened to my tyres??!?

[jonah35]

Theyve done nearly 15k miles, on a cayenne turbo, on german autobahns when youre prob going well over 100mph!

[Hereward]

It would be good to discuss this directly with Dunlop. I'm sure they would appreciate the feedback with real-world test results and their conclusions would be most interesting.

[kambites]

Hereward said:

It would be good to discuss this directly with Dunlop. I'm sure they would appreciate the feedback with real-world test results and their conclusions would be most interesting.

I suspect their conclusions would be "we only claim the tyre is good for 130mph and you've been going faster than that so we don't care".

[cslwannabe]

Vredestein Wintacs offer up to V speed rating (at least).

[vetrof]

kambites said:

I'm not aware of anyone making a winter tyre with a higher speed rating than that,

Continental WinterContacts are V rated on my BMW.

OT - PH will you be attending the Sports Car meet at the Brno Autodrom weekend of 11-12 May? Normally a good day out.

http://www.automotodrombrno.cz/en/#!/season/233/in...

[kambites]

Bear in mind that he needs an abnormally high load rating for such a heavy vehicle as well as a high speed rating. I think he'll need somewhere around 100, do either of those tyres go that high?

[Chicane-UK]

Lucky you didn't come to any greater harm if you were regularly exceeding the maximum speed rating for the tyres!

[kambites]

Chicane-UK said:

Lucky you didn't come to any greater harm if you were regularly exceeding the maximum speed rating for the tyres!

I suspect there's a fair margin for error in the ratings in terms of the likelihood of catastrophic failure. I can't see the manufacturers cutting it too fine in case they get it wrong.

[SMcP114]

kambites said:

Chicane-UK said:

Lucky you didn't come to any greater harm if you were regularly exceeding the maximum speed rating for the tyres!

I suspect there's a fair margin for error in the ratings in terms of the likelihood of catastrophic failure. I can't see the manufacturers cutting it too fine in case they get it wrong.

Exactly, calm down. They won't explode, it's just a guideline. Does anyone really believe the manufacturer hasn't thought about that, and left quite a substantial margin?

[Prancing Hippo]

vetrof said:

Continental WinterContacts are V rated on my BMW.

OT - PH will you be attending the Sports Car meet at the Brno Autodrom weekend of 11-12 May? Normally a good day out.

http://www.automotodrombrno.cz/en/#!/season/233/in...

Thanks. Will check them out. Am tempted by Brno if I am around. Race at Brno quite a bit for various races. Slovakiaring this Friday in case you are there - look for Kumiega Racing.

[anonymous-user]

Winter tyres not working well outside of winter shocker!